The moral philosophy and spiritual conceptions of men and nations should hold their own amid these formidable scientific evolutions...No material progress, even though it takes shapes we cannot now conceive, or however it may expand the faculties of man, can bring comfort to his soul.

Favor comes because for a brief moment in the great space of human change and progress some general human purpose finds in him a satisfactory embodiment.

I'm one of those people that think Thomas Edison and the light bulb changed the world more than Karl Marx ever did.

Change based on principle is progress. Constant change without principle becomes chaos.

I like progress but I hate change.

The remains of the old must be decently laid away; the path of the new prepared. That is the difference between Revolution and Progress.